99199898 has 16 divisors (see below), whose sum is σ = 170286144. Its totient is φ = 42456960.

The previous prime is 99199889. The next prime is 99199909. The reversal of 99199898 is 89899199.

It is a self number, because there is not a number n which added to its sum of digits gives 99199898.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6986 + ... + 15722.

It is an arithmetic number, because the mean of its divisors is an integer number (10642884).

Almost surely, 2^99199898 is an apocalyptic number.

99199898 is a deficient number, since it is larger than the sum of its proper divisors (71086246).

99199898 is a wasteful number, since it uses less digits than its factorization.

99199898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557.

The product of its digits is 3779136, while the sum is 62.

The square root of 99199898 is about 9959.9145578664. The cubic root of 99199898 is about 462.9176522438.

The spelling of 99199898 in words is "ninety-nine million, one hundred ninety-nine thousand, eight hundred ninety-eight".